Answer:
$324
Explanation:
We are told from the question that Teresa made $216 for 12 hours of work. This is expresed as:
$216 = 12 hours
To get the amount Teresa will work for 18 hours, we can write;
x = 18 hours
Divide both equation and find x
216/x = 12/18
Cross multiply
12x = 216 * 18
12x = 3888
x = 3888/12
x = 324
Hence Teresa will make $324 for 18 hours of work
12 1/3 - 5 3/4 PLEASE HELP!!!!
Answer: 6.583
Step-by-step explanation:
Answer:
12 1/3
5 3/4
(change the denominator to something equal)
3 and 4 can both be multiplied by 6 to get 24
so change the denominators by multiplying by 6 to get 24.
and also you have to multiply the numerator also by 6 on both fractions.
it should look like this: 1/3 changes into 6/24. 3/4 changes into 18/24
then you are to add them since both denominators are the same.
18+6= 24/24 which equals 1.
so if it equals 1 your final answer will be: 18.
conclusion: multiply 6 on both the numerator and denominator on both fractions. add together to get answer.
hope this helps you.
he button provides an automatic means of checking for mathematical errors within formulas of a worksheet.
The Error checking button provides an automatic means of checking for mathematical errors within formulas of a worksheet.
The modeling process begins with the framing of a conceptual model that shows the relationships between the various parts of the problem being modeled.
Arrows pointing from the selected cell to cells that depend on the selected cell are generated by using the Trace dependents button of the Formula Auditing group.
nodes in an influence diagram represent part of the model
The Trace Precedents button, located in the Formula Auditing group, creates arrows pointing to the selected cell from cells that are part of the formula in that cell
The Error checking button provides an automatic means of checking for mathematical errors within formulas of a worksheet.
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2.1. Provide a general rule to describe the relationship between the dates of spread and number of people infected infected.
The relationship between the dates of spread and the number of people infected can vary depending on various factors such as the infectiousness of the disease, the effectiveness of containment measures, population density, and individual behaviors.
However, there is a general rule that can describe the relationship:As the dates of spread progress, the number of infected individuals tends to increase initially, reaching a peak, and then gradually decreasing over time.
This pattern is often referred to as the epidemic curve or the epidemiological curve. In the early stages of an outbreak, the number of cases may grow rapidly as the disease spreads through a susceptible population. This rapid increase is often influenced by factors such as the contagiousness of the disease, population density, and social interactions.
As containment measures, such as vaccination campaigns, public health interventions, and behavioral changes, are implemented, the rate of new infections may start to decline. This can lead to a peak in the number of cases, after which the curve gradually decreases as the disease is brought under control and fewer susceptible individuals remain.
It's important to note that the specific shape, duration, and magnitude of the epidemic curve can vary significantly depending on the disease and the effectiveness of the response measures implemented. Additionally, emerging variants, changes in behavior, and other factors can impact the trajectory of the epidemic curve.
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What is the value of the expression shown below?
10 + (2 x 3)2 ÷ 4 × 1 over 2 to the power of 3
Answer:
82
Step-by-step explanation:
Answer:
11 1/8
Step-by-step explanation:
took the test :)
Is it A or B .................................
Answer:
I am guessing B
Step-by-step explanation:
When I divided 10 by 11 it gave me 0.90 but when I did 3 by 3.75 I received 0.8
Answer:
B)
Step-by-step explanation:
3.75 ÷ 3 = 1.25 for U Rule.
11 ÷ 10 = 1.1 for Daren's.
-kiniwih426
A quick quiz consists of a multiple choice question with 6 possible answers, followed by a true/false
question
If both questions are answered with random guesses, find the probability that both responses are
correct.
Report the answer as a percent rounded to two decimal place accuracy. You need not enter the "%" symbol.
Probability = %
Answer:
8.33%
Step-by-step explanation:
The probability of answering the first question correct is 1/6
The probability of answering the second question correct is 1/2
The total probability is 1/6 * 1/2 which is 1/12 which is 8.33%
A cone and a cylinder have the same radius and height What would you need to do to the volume of the cone to find the volume of the cylinder? Multiply by 3 Divide by 3?
Tara has 8.7 feet of fabric. She wants to make table runners that are all 1.45 feet long. How many table runners can she make?
Answer:
6 table runners
Step-by-step explanation:
8.7 ÷ 1.45 = 6
Which expression is equivalent to 6^-2 x 6^4
Answer:
6^2 or 36
Step-by-step explanation:
Here we have two powers of the same base (6).
The pertinent rule is b^c * b^d = b^(c + and so here we have
6^(-2) * 6^4 = 6^(4 - 2) = 6^2 or 36
A total of 100 people went to the
movies. A ticket cost $4 for adults and
$2 for children. The total sales
amounted to $276. How many children
and adults attended the movies?
Using a system of equations, the number of children and adults who attended the movies is as follows:
Children = 62Adults = 38.What is a system of equations?A system of equations is two or more equations solved concurrently.
A system of equations is also known as simultaneous equations.
The total number of people who went to the movies = 100
The unit cost of adult tickets = $4
The unit cost of children tickets = $2
The total sales = $276
Let the number of children who attended the movies = x
Let the number of adults who attended the movies = y
Equations:x + y = 100 ... Equation 1
2x + 4y = 276 ... Equation 2
Multiply Equation 1 by 2:
2x + 2y = 200 ... Equation 3
Subtraction Equation 3 from Equation 2:
2x + 4y = 276
-
2x + 2y = 200
2y = 76
y = 38
Substitute y = 19 in equation 1:
x + y = 100
x + 38 = 100
x = 62
Check in Equation 2:
2x + 4y = 276
2(62) + 4(38) = 276
124 + 152 = 276
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Raw scores on a certain standardized test one year were normally distributed, with a mean of 156 and a standard deviation of 23. If
48,592 students took the test, about how many of the students scored less than 96?
Answer:
About 220 of the students scored less than 96
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 156 and a standard deviation of 23.
This means that \(\mu = 156, \sigma = 23\)
Proportion that scored less than 96:
p-value of Z when X = 96. So
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{96 - 156}{23}\)
\(Z = -2.61\)
\(Z = -2.61\) has a p-value of 0.00453.
About how many of the students scored less than 96?
0.00453 out of 48592.
0.00453*48592 = 220.1.
Rounding to the closest integer:
About 220 of the students scored less than 96
Answer:
220
Step-by-step explanation:
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Two functions f and g are defined in the figure below.
Find the domain and range of the composition g of. Write
your answers in set notation.
Step-by-step explanation:
~ See above for the answer ~
The domain of (g o f)(x) = {5, 6, 8, 9}
The range of (g o f)(x) = 8, and 5.
We have,
Formally, the composition of two functions f and g is defined as follows:
(f o g)(x) = f (g(x))
Now,
(g o f)(x) = g (f(x))
This means,
The domain of (g o f)(x):
= The range of f
This means,
= {5, 6, 8, 9}
Now,
The range of (g o f)(x).
= g(5), g(6), g(8), and g(9)
This means,
= 8, and 5.
Thus,
The domain of (g o f)(x) = {5, 6, 8, 9}
The range of (g o f)(x) = 8, and 5.
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Can you help me with this?
The vertices of triangle J'K'L' after a reflection of the triangle JKL over the x-axis is given as follows:
J'(-5, -5).K'(5, -7).L'(2,-3).How to model the reflection over the x-axis?The original vertices of the figure are given as follows:
J(-5,5), K(5,7) and L(2,3).
For a reflection over the x-axis, the reflection rule is defined as follows:
(x,y) -> (x,-y).
Meaning that the x-coordinate remains constant while the y-coordinate has the sign exchanged.
Then the vertices of the reflected figure are given as follows:
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Let D= Ф(R), where Φ(u,v)= (u^2, u+v) and R= [1,9] x [0,5]. Calculate \int \: \int \: _D ydA
The value of the double integral of y over D is 160.
The region D is defined as the image of the rectangle R under the transformation Φ(u,v) = (u², u+v). To find the integral of y over D, we need to express y as a function of u and v, and then compute the double integral in terms of u and v.
From the definition of Φ, we have:
u² = x
u + v = y
Solving for v in terms of u and y, we get:
v = y - u
Substituting this expression for v into the second equation, we get:
y = u + (y - u) = y
Therefore, y does not depend on u, and we can write:
y = f(v) = v + u
The integral of y over D can then be written as:
∫∫D y dA = ∫∫R f(v) |J| dA
where J is the Jacobian of the transformation Φ.
The Jacobian of Φ is given by:
J = ∂(x,y)/∂(u,v) =
| 2u 1 |
| 1 1 |
The determinant of J is:
|J| = 2u - 1
Substituting this expression for |J| and the expression for f(v) into the integral, we get:
∫∫D y dA = ∫∫R (v + u)(2u - 1) dudv
To evaluate this integral, we can integrate first with respect to u and then with respect to v:
∫∫D y dA = ∫[0,5]∫[1,9] (v + u)(2u - 1) dudv
= ∫[0,5] [(v+9)³/3 - (v+1)³/3] dv
= [(5+9)⁴/12 - (1+9)⁴/12]
= 480/3
= 160
Therefore, the value of the double integral of y over D is 160.
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Complete question:
Let D= Ф(R), where Φ(u,v)= (u², u+v) and R= [1,9] × [0,5].
Calculate \(\mathrm{\int \: \int \: _D ydA}\)
A stamp cost 25 kobo, how many Stamp can a man buy with 2.85 Naira
Answer:
11 stamps approximately
Step-by-step explanation:
convert 25 Kobo to naira
which is 25/100 = 0.25 naira
therefore, a stamp will cost 0.25 naira.
number of stamps the man can buy with 2.85 naira will be 2.85/0.25 =11.4 stamp
which is 11 stamps (approximately)
Please help as fast as you can please!
Answer:
B
Step-by-step explanation:
Make 4 \(\frac{2}{5}\) an improper fraction. To do that multiply the denominator, 5 by 4, which gets you 20. Then add the numerator, 2, to get 22. put the original denominator back into the fraction, and you get \(\frac{22}{5}\) . If you divide that by \(\frac{2}{5}\) , you would get 11 because you divide the numerator and the denominators cancel each other out since they are both the same number, and 22 ÷ 2 = 11.
Which is the correct equation for a line that passes through the points (-2,7) and (2,-5)?
y=3x+5
y=1/3x+3
y= -3x-12
y= -3x+1
Answer:
y= -3x+1
Step-by-step explanation:
x1= -2 x2=2 y1=7 y2=-5
using the formula
(y-y1)/(x-x1)=(y2-y1)/(x2-x1)
(y-7)/(x-(-2))=(-5-7)/(2-(-2))
(y-7)/(x+2)=(-5-7)/(2+2)
(y-7)/(x+2)=(-12)/4
(y-7)/(x+2)=-3
cross multiply
y-7=-3(x+2)
y-7=-3x-6
y=-3x-6+7
y=-3x+1
write each mixed number as an improper fraction 2 1/4
Step-by-step explanation:
\(2 \frac{1}{4} \\ \frac{2 \times 4 + 1}{4} \\ \frac{8 + 1}{4} \\ \frac{9}{4} \)
Find the slope of the line passing through the points (7,3) and (7,-8).
Find the slope of the line passing through the points (-7, 2) and (-7,8).
Answer:
1. slope = 0 2. slope = 0
Step-by-step explanation:
1. y2 - y1 / x2 - x1
-8 - 3 / 7 - 7
-11/0
= 0
2. y2 - y1 / x2 - x1
8 - 2 / -7 - (-7)
6 / 0
= 0
The perimeter of a regular hexagon is 6s, where s is the length of each side of the hexagon. A gardener creates a garden bed shaped like a regular hexagon. Each side of the bed is 8 meters long. What is the perimeter of the garden?
The perimeter of the garden bed shaped like a regular hexagon is 48
The perimeter of a regular hexagon is 6s
where s is the length of each side of the hexagon.
A gardener creates a garden bed shaped like a regular hexagon. Each side of the bed is 8 meters long
We need to calculate the perimeter of the garden
To calculate the perimeter, we can substitute the value of s as 8 in the above given formula
perimeter of a regular hexagon = 6s
perimeter of a garden bed shaped like a regular hexagon = 6 x 8 = 48
Therefore, the perimeter of the garden bed shaped like a regular hexagon is 48
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I need help in understanding and solving quadratic equations using the quadratic formula
x^2+8x+1=0
Answer:
Exact Form: -4⊥√15
Decimal Form:
0.12701665
7.87298334
…
You work for a swimming pool cleaning service. The pool you are cleaning holds 15,000 gallons of water. The cleaning solution you have to add to the pool calls for a ratio of 1:6,000 (1oz to 6,000 gallons of water). What is the ratio of solution you must use for this specific pool?
Answer:
The answer would be 2.5 oz. of solution
Step-by-step explanation:
If you need 1:6,000 ratio and the pool you are cleaning is 15,000 then you divide 15,000 by 6,000 and you get what your ratio should be
Let f(x,y,z)=(x^2)(y^3)+(z^3) and x=(s^2)*(t^3),y=s*t , and z=(s^2)*t .∂x/∂s=?
The value of ∂x/∂s is 4s^2 * t^6.
To find ∂x/∂s, we need to differentiate x with respect to s while treating t as a constant. Let's begin by substituting the given expressions for x, y, and z into the function f(x, y, z):
f(x, y, z) = (x^2)(y^3) + z^3
Substituting x, y, and z:
f(s, t) = ((s^2)(t^3))^2 * (s*t)^3 + ((s^2)*t)^3
Expanding the expression:
f(s, t) = (s^4 * t^6) * (s^3 * t^3) + (s^6 * t^3)
Now, let's differentiate x with respect to s:
∂x/∂s = ∂/∂s [(s^2)(t^3)]^2
Using the chain rule, we can differentiate each term separately:
∂x/∂s = 2 * (s^2 * t^3)^1 * ∂/∂s [(s^2)(t^3)]
Differentiating (s^2)(t^3) with respect to s:
∂/∂s [(s^2)(t^3)] = 2s * t^3
Substituting back into the expression for ∂x/∂s:
∂x/∂s = 2 * (s^2 * t^3)^1 * 2s * t^3
Simplifying:
∂x/∂s = 4s^2 * t^6
Therefore, ∂x/∂s = 4s^2 * t^6.
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In △JKL , if m∠ J < 90° , then ∠K and ∠L are _____
Both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
In triangle JKL, if angle J is less than 90 degrees, then angle K and angle L are both acute angles.
An acute angle is defined as an angle that measures less than 90 degrees. Since angle J is given to be less than 90 degrees, it is an acute angle.
In a triangle, the sum of the interior angles is always 180 degrees. Therefore, if angle J is less than 90 degrees, the sum of angles K and L must be greater than 90 degrees in order to satisfy the condition that the angles of a triangle add up to 180 degrees.
Hence, both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
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The set of natural numbers x that satisfy x+8=3
Answer:
-5
Step-by-step explanation:
x+8=3
x=3-8
we can easily say +3-8=-5
u +7 at u=9
Help!!!!
Answer:
u = 0
Step-by-step explanation:
hedh djsf
fjdg
ggf
what do the widths of the bars in an energy pyramid represent?
Answer:
it represents and the relative amount of energy in the trophic level.i think sorry if I am wrong
The widths of the bars in an energy pyramid represent the units of energy available within each trophic level.
What is a energy pyramid?It is defined as the graphical representation of the movement of the energy from one living organism to another in the ecosystem.
When we think of one organism eating another, we usually think of a huge, predatory predator at the top of the food chain. While this depicts the ecological relationships between creatures, it does not depict the energy flow throughout the ecosystem.
Every bar's width indicates the units of energy available within each trophic level, while the height remains constant. The flow of energy goes from the bottom up through the layers of the energy pyramid, gradually decreasing as energy is used up by the creatures at each level.
Thus, the widths of the bars in an energy pyramid represent the units of energy available within each trophic level.
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Which is the best description of range?
The repeated values in the input set.
The -values on a graph.
The connection between sets of values.
The input values of a function.
The best description of range is (b) The y-values on a graph.
How to determine the best description of range?A graph is characterized by the following concepts:
DomainRangeThe domain of a function is the set of input values of the graph
On the other hand, the range of a function is the set of output values of the graph
This in other word means that the range is the y-values on a graph.
Hence, the best description of range is (b) The y-values on a graph.
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Answer:
its B
Step-by-step explanation:
the y values on the graph
i did the quiz and got a 100
Last month, a truck driver made
5 round-trips to Los Angeles and some round-trips to San Diego.
Write an expression that shows how many miles he drove in all.
Identify and describe the part of the expression that shows how
many miles he drove and trips he made to San Diego.
Example Answer:
You could represent a round trip to Los Angeles with the variable: x
You could represent the number of miles in a round trip to Los Angeles with the variable: a
You could represent a round trip to San Diego with the variable: y
You could represent the number of miles in a round trip to San Diego with the variable: b
your equation would be: xa + yb
Factoring in what we know, the example equation would be:
5a + yb
The question is in the picture
In practical terms, it means that the corn's height was originally 14 centimeters and that it grows by 1.4 centimeters per day.
What are the meaning and implications of the expression given?The expression given H= 14 + 1.4t shows the way the plant grows day by day. In this expression, there are some elements that we need to understand to better interpret it:
H = Height, which is the variable the expression determines.14 = Initial height of the plant that is constant.1.4 = Centimeters the plant grows every day with the treatment.t = Number of days.Learn more about growth in https://brainly.com/question/28789953
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